Daily Archives: February 25, 2016

The KT Extinction 3: 7 worst days on Planet Earth


stargazer

Published on Apr 20, 2014

The 7 WORST DAYS on planet Earth playlist: https://www.youtube.com/playlist?list…
The Cretaceous–Paleogene (K–Pg) extinction event, formerly known as the Cretaceous–Tertiary (K–T) extinction, was a mass extinction of some three-quarters of plant and animal species on Earth—including all non-avian dinosaurs—that occurred over a geologically short period of time 66 million years (Mya) ago.
In the geologic record, the K–Pg event is marked by a thin layer of sediment called the K–Pg boundary, which can be found throughout the world in marine and terrestrial rocks. The boundary clay shows high levels of the metal iridium, which is rare in the Earth’s crust but abundant in asteroids.

It is estimated that 75% or more of all species on Earth vanished. Yet the devastation caused by the extinction also provided evolutionary opportunities. In the wake of the extinction, many groups underwent remarkable adaptive radiations — a sudden and prolific divergence into new forms and species within the disrupted and emptied ecological niches resulting from the event. Mammals in particular diversified in the Paleogene, producing new forms such as horses, whales, bats, and primates. Birds, fish and perhaps lizards also radiated.

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Ordovician Extinction 4: 7 worst days on Planet Earth


stargazer

Published on Apr 20, 2014

The 7 WORST DAYS on planet Earth playlist: https://www.youtube.com/playlist?list…

The Ordovician–Silurian extinction event, the Ordovician extinction, was the second-largest of the five major extinction events in Earth’s history in terms of percentage of genera that went extinct and second largest overall in the overall loss of life.
At the time, all known life was confined to the seas and oceans. More than 60% of marine invertebrates died including two-thirds of all brachiopod and bryozoan families. Brachiopods, bivalves, echinoderms, bryozoans and corals were particularly affected. The immediate cause of extinction appears to have been the movement of Gondwana into the south polar region. This led to global cooling, glaciation and consequent sea level fall. The falling sea level disrupted or eliminated habitats along the continental shelves. Evidence for the glaciation was found through deposits in the Sahara Desert. A combination of lowering of sea level and glacially driven cooling are likely driving agents for the Ordovician mass extinction.

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2015: A Year of People Powered Change


GreenpeaceVideo

Published on Dec 17, 2015

As 2015 draws to a close, we look back on some of the Greenpeace campaign highlights of the past year.

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Rainbow Warrior in Fukushima, Japan – 5 years on


GreenpeaceVideo

Published on Feb 24, 2016

On March 11, 2011 an earthquake and tsunami rocked Japan, causing the tragic Fukushima Daiichi nuclear disaster. 5 years later and not much has changed.
The Rainbow Warrior along with a research vessel re-visited the area in February 2016 to conduct underwater marine radiation surveys within a 20km radius of the Fukushima Daiichi plant. Also on-board was former Japanese Prime Minister, Mr Naoto Kan who has spoken publicly against the nuclear industry, standing alongside millions of Japanese people opposed to nuclear power.

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Nuclear

The American Southwest: Are We Running Dry? – The Trailer


bestmedia

Published on Feb 25, 2016

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Amnesty International releases report on global human rights


CCTV Africa

Published on Feb 25, 2016

Well, Amnesty International has released its report on global human rights – with the plight of refugees and migrants in Europe taking center stage. The European Union is the richest bloc in the world, but Amnesty says governments have neglected their commitments to human rights. The human rights report takes a look at 160 countries in the world.

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Concerns raised over the possible spread of Zika Virus into Africa


CCTV Africa

Published on Feb 25, 2016

The Zika outbreak is a cause for global concern. So far, most of the cases are in South America, but it’s fast been spreading. In Africa, South Africa and Cape Verde recently recorded cases – but it’s raised questions over the possible spread into the continent.

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Deadly Storms Batter East Coast, Midwest


Associated Press

Published on Feb 25, 2016

Storms systems brought tornadoes to the East Coast, killing four in Virginia, and heavy snow that canceled hundreds of flights in the Midwest. Damage on the East Coast stretches from Virginia to New York. (Feb. 25)

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The Stream – Oil wars


Al Jazeera English

Published on Feb 24, 2016

On The Stream: From Angola to Venezuela, ordinary citizens are on the front lines of crashing oil prices.

Joining this conversation:

Gregor Macdonald @GregorMacdonald
Independent journalist
gregor.us

Robin Mills @robinenergy
Non-Resident Fellow for Energy at the Brookings Doha Center

Chuba Ezekwesili @ChubaEzeks
Research Analyst, Nigerian Economic Summit Group (NESG)
www.naijanomics.info

Elias Isaac
Angola Programme Manager, Open Society Initiative for Southern Africa
osisa.org

Follow The Stream and join Al Jazeera’s social media community:

This episode’s story:
http://stream.aljazeera.com/story/201…

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Inside Story – Who benefits from the growth in the arms trade?


Al Jazeera English

Published on Feb 25, 2016

New figures from the Stockholm International Peace Research Institute show just how much arms sales have been growing – with a 14 percent rise in the last five years compared to the previous five years.Countries in Asia and the Middle East are the biggest buyers – India and Saudi Arabia are first and second. Currently at war with forces across the border in Yemen Saudi arms imports almost trebled compared with the period between 2006 and 2010. China remains in the top three though interestingly its share has decreased quite dramatically as Beijing continues to pour money into developing its own arms manufacturing industry.That’s borne out in the list of the world’s biggest arms exporters where China has now overtaken France and Germany sitting behind the world’s top two the United States and Russia.

So what does it all mean for world security?Presenter: Mike Hanna Pieter Wezeman – Senior researcher in the Stockholm International Peace Research Institute’s Arms and Military Expenditure ProgrammeManoj Joshi – Head of the National Security Programme for the Observer Research FoundationTomas Baum – Director of the Flemish Peace Institute an independent parliamentary research institute-

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